Release v1.46.0

Good day Lodestar operators! We've just released v1.46.0, a recommended upgrade for all mainnet and testnet users. This release focuses on shutdown/restart stability, safer validator behavior while optimistic, and continued Gloas/Heze development for the upcoming forks and devnets. If you build or run Lodestar from source with Bun, switch back to Node.js: Bun runtime support was removed. Node…